<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
	    <input type="button" value="打开" onclick="op();">
	 
	 	<script type="text/javascript">
//	 		alert(op);
//			alert(a);
	 		var a = "";
			function op(){
			    var dow = window.open();
			    dow.document.open();
			    dow.document.write("<html><head><title>NEW</title></head></html>");
			    dow.document.write("<body>新画面</body>");
			    dow.document.write("</html>");
			}
		</script> 
	</body>
</html>
